Java Report asked its contributors for feedback on what they
believe to be some of the more exceptional products and tools
they had encountered in 1998, and Inside
the Java Virtual Machine was one of the chosen products.
Here's what Antoine Trux, Java Report author, had to say about
the book:

Getting to the Heart of Java

In this superb piece of work, Bill Venners explains in detail the
inner workings of the Java virtual machine (JVM) by presenting
possible implementations of many parts of that intricate piece
of software. It is therefore a welcome complement to Sun's
official specification. Each concept is clearly presented,
often with the help of sample code. The accompanying CD also
contains enlightening demos about the inner workings of the
virtual machine. This book will be greatly appreciated not only
by VM implementers, but also by anyone just curious to
understand a component that's at the very heart of Java.

Antoine Trux, a Project
Manager at Nokia Research Center in Helsinki, Finland.

The above quote is taken from the December 1998 (Volume 3, Number 12) issue
of Java Report magazine, a SIGS publication.